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Multi-modal Large Language Models (MLLMs) excel in vision-language tasks but remain vulnerable to visual adversarial perturbations that can induce hallucinations, manipulate responses, or bypass safety mechanisms. Existing methods seek to…

Computer Vision and Pattern Recognition · Computer Science 2025-02-04 Hashmat Shadab Malik , Fahad Shamshad , Muzammal Naseer , Karthik Nandakumar , Fahad Khan , Salman Khan

In many reasoning tasks, large language models (LLMs) rely on structured external knowledge, such as graphs and tables, which is typically linearized into sequential token representations. However, even when sufficient knowledge is…

Computation and Language · Computer Science 2026-05-27 Shanghao Li , Jinda Han , Yibo Wang , Yuanjie Zhu , Zihe Song , Langzhou He , Kenan Kamel A Alghythee , Philip S. Yu

Multimodal Large Language Models (MLLMs) have demonstrated remarkable proficiency in multimodal tasks. Despite their impressive performance, MLLMs suffer from the modality imbalance issue, where visual information is often underutilized…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Hengzhuang Li , Xinsong Zhang , Qiming Peng , Bin Luo , Han Hu , Dengyang Jiang , Han-Jia Ye , Teng Zhang , Hai Jin

Hallucination has been a long-standing and inevitable problem that hinders the application of Large Vision-Language Models (LVLMs) in domains that require high reliability. Various methods focus on improvement depending on data annotations…

Computer Vision and Pattern Recognition · Computer Science 2025-02-04 Chao Wang , Jianming Yang , Yang Zhou

Contrastive decoding strategies are widely used to reduce object hallucinations in multimodal large language models (MLLMs). These methods work by constructing contrastive samples to induce hallucinations and then suppressing them in the…

Computation and Language · Computer Science 2025-10-08 Hao Yin , Guangzong Si , Zilei Wang

Recently evolved large reasoning models (LRMs) show powerful performance in solving complex tasks with long chain-of-thought (CoT) reasoning capability. As these LRMs are mostly developed by post-training on formal reasoning tasks, whether…

Computation and Language · Computer Science 2025-05-30 Zijun Yao , Yantao Liu , Yanxu Chen , Jianhui Chen , Junfeng Fang , Lei Hou , Juanzi Li , Tat-Seng Chua

Large Vision-Language Models (LVLMs) have demonstrated remarkable capabilities in multimodal task reasoning. However, they often generate responses that appear plausible yet do not accurately reflect the visual content, a phenomenon known…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Jiaqi Wang , Yifei Gao , Jitao Sang

Multimodal Large Language Models (MLLMs) emerge as a unified interface to address a multitude of tasks, ranging from NLP to computer vision. Despite showcasing state-of-the-art results in many benchmarks, a long-standing issue is the…

Computer Vision and Pattern Recognition · Computer Science 2025-08-29 Alberto Compagnoni , Davide Caffagni , Nicholas Moratelli , Lorenzo Baraldi , Marcella Cornia , Rita Cucchiara

The development of Reasoning Large Language Models (RLLMs) has significantly improved multi-step reasoning capabilities, but it has also made hallucination problems more frequent and harder to eliminate. While existing approaches mitigate…

Computers and Society · Computer Science 2025-12-29 Haolang Lu , Yilian Liu , Jingxin Xu , Guoshun Nan , Yuanlong Yu , Zhican Chen , Kun Wang

Large Vision-Language Models (LVLMs) extend large language models with visual understanding, but remain vulnerable to hallucination, where outputs are fluent yet inconsistent with images. Recent studies link this issue to language bias-the…

Computation and Language · Computer Science 2026-05-26 Yangneng Chen , Jing Li

The rapid development of Multi-modality Large Language Models (MLLMs) has significantly influenced various aspects of industry and daily life, showcasing impressive capabilities in visual perception and understanding. However, these models…

Computer Vision and Pattern Recognition · Computer Science 2024-09-17 Yinan Sun , Zicheng Zhang , Haoning Wu , Xiaohong Liu , Weisi Lin , Guangtao Zhai , Xiongkuo Min

Multimodal large language models (MLLMs) have demonstrated strong capabilities on vision-and-language tasks. However, recent findings reveal an imbalance in their reasoning capabilities across visual and textual modalities. Specifically,…

Artificial Intelligence · Computer Science 2026-01-09 Guanyu Yao , Qiucheng Wu , Yang Zhang , Zhaowen Wang , Handong Zhao , Shiyu Chang

In recent years, multimodal large language models (MLLMs) have achieved significant breakthroughs, enhancing understanding across text and vision. However, current MLLMs still face challenges in effectively integrating knowledge across…

Computation and Language · Computer Science 2025-03-10 Boyu Jia , Junzhe Zhang , Huixuan Zhang , Xiaojun Wan

Large language models (LLMs) often generate hallucinations -- unsupported content that undermines reliability. While most prior works frame hallucination detection as a binary task, many real-world applications require identifying…

In text-to-image (T2I) generation, a prevalent training technique involves utilizing Vision Language Models (VLMs) for image re-captioning. Even though VLMs are known to exhibit hallucination, generating descriptive content that deviates…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Weichen Yu , Ziyan Yang , Shanchuan Lin , Qi Zhao , Jianyi Wang , Liangke Gui , Matt Fredrikson , Lu Jiang

Multimodal large language models (MLLMs) have achieved strong performance on vision-language tasks but still struggle with fine-grained visual differences, leading to hallucinations or missed semantic shifts. We attribute this to…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Tianyi Bai , Yuxuan Fan , Jiantao Qiu , Fupeng Sun , Jiayi Song , Junlin Han , Zichen Liu , Conghui He , Wentao Zhang , Binhang Yuan

Large Vision-Language Models (LVLMs) have made significant progress in recent years but are also prone to hallucination issues. They exhibit more hallucinations in longer, free-form responses, often attributed to accumulated uncertainties.…

Computer Vision and Pattern Recognition · Computer Science 2025-10-24 Ge Zheng , Jiaye Qian , Jiajin Tang , Sibei Yang

The emergence of large language models (LLMs) has marked a significant breakthrough in natural language processing (NLP), fueling a paradigm shift in information acquisition. Nevertheless, LLMs are prone to hallucination, generating…

Computation and Language · Computer Science 2024-11-20 Lei Huang , Weijiang Yu , Weitao Ma , Weihong Zhong , Zhangyin Feng , Haotian Wang , Qianglong Chen , Weihua Peng , Xiaocheng Feng , Bing Qin , Ting Liu

Large Language Models (LLMs) have become increasingly important in natural language processing, enabling advanced data analytics through natural language queries. However, these models often generate "hallucinations"-inaccurate or…

Computation and Language · Computer Science 2024-10-29 Mikhail Rumiantsau , Aliaksei Vertsel , Ilya Hrytsuk , Isaiah Ballah

Large vision-language models (LVLMs) have demonstrated remarkable multimodal comprehension and reasoning capabilities, but they still suffer from severe object hallucination. Previous studies primarily attribute the flaw to linguistic prior…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Haohan Zheng , Zhenguo Zhang